坂井　 直道

研究成果

年別の研究成果 1991 2001 2002 2003 2004 2005 2006 2008 2022

• 231 Article
• 68 Conference article
• 10 Conference contribution
• 3 Review article
• 2 その他
  • 1 Paper
  • 1 Comment/debate

年別の研究成果

年別の研究成果

検索結果

• Article

  Improvement of thermal stability with alloy impregnation in Gd-Ba-Cu-O superconductors for pulsed field magnetization

  Kimura, Y., Matsumoto, H., Fukai, H., Sakai, N., Hirabayashi, I., Izumi, M. & Murakami, M., 2006 6月 1, In: Journal of Physics: Conference Series. 43, 1, p. 389-392 4 p., 097.

  研究成果: Article › 査読

  • thermal stability 100%
  • magnetization 74%
  • thermal conductivity 59%
  • thermocouples 41%
  • magnets 31%
  2 被引用数 (Scopus)

• Influence of initial composition on the flux pinning of melt-processed (Sm_xEu_1-x)Ba₂Cu₃O_7-δ

  Hu, A., Sakai, N., Huang, D. X., Chikumoto, N. & Murakami, M., 2002 10月 1, In: Physica C: Superconductivity and its applications. 378-381, PART 1, p. 692-696 5 p.

  研究成果: Article › 査読

  • Irreversibility Line 100%
  • Flux pinning 90%
  • flux pinning 60%
  • Molar ratio 59%
  • Modulation 38%
  2 被引用数 (Scopus)

• Influence of KClO₃ Addition on the Magnetic Properties and Microstructural Morphology of Y_(1-0.2x)Ba_(2-0.2x)K_xCu₃O _y (x = 0 ÷ 0.40) Polycrystalline HTSC

  Veneva, A., Koblischka, M. R., Sakai, N., Ogasawara, K. & Murakami, M., 1999, In: Journal of Low Temperature Physics. 117, 3-4, p. 939-943 5 p.

  研究成果: Article › 査読

  • Magnetic properties 100%
  • high temperature superconductors 85%
  • Grain Boundary 85%
  • Grain boundaries 83%
  • Impurities 79%
  4 被引用数 (Scopus)

• Investigation of three-dimensional current distribution at silver diffusion joint of RE-123 coated conductors based on magnetic microscopy combined with finite element method

  Higashikawa, K., Honda, Y., Inoue, M., Kiss, T., Chikumoto, N., Sakai, N., Izumi, T. & Okamoto, H., 2011 6月, In: IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3403-3407 5 p., 5677565.

  研究成果: Article › 査読

  • Scanning Hall Probe Microscopy 100%
  • current distribution 48%
  • Silver 48%
  • Microscopic examination 47%
  • Conductor 44%
  8 被引用数 (Scopus)

• Irreversible field determined by pulsed magnetization and compositional fluctuation of melt-processed (Sm, Eu, Gd)Ba₂Cu₃O _7-δ superconductors

  Hu, A., Kono, T., Zhou, H., Iida, K., Nakao, K., Sakai, N., Koshizuka, N., Murakami, M. & Hirabayashi, I., 2005 1月 1, In: Superconductor Science and Technology. 18, 1, p. 58-63 6 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Magnetization 90%
  • Superconductor 85%
  • Magnetic Field 71%
  • inclusions 60%
  5 被引用数 (Scopus)

• Joining of different Y-Ba-Cu-O blocks

  Iida, K., Kono, T., Kaneko, T., Katagiri, K., Sakai, N., Murakami, M. & Koshizuka, N., 2004 2月 1, In: Physica C: Superconductivity and its applications. 402, 1-2, p. 119-126 8 p.

  研究成果: Article › 査読

  • Solder 100%
  • solders 90%
  • Soldering alloys 79%
  • Joining 79%
  • Plate Like Crystal 63%
  12 被引用数 (Scopus)

• Joining of Y-Ba-Cu-O/Ag bulk superconductors using Er-Ba-Cu-O/Ag solder

  Iida, K., Kono, T., Kaneko, T., Katagiri, K., Sakai, N., Murakami, M. & Koshizuka, N., 2004 2月 1, In: Superconductor Science and Technology. 17, 2, p. S46-S50

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Solder 94%
  • Superconductor 85%
  • solders 85%
  • Soldering alloys 74%
  9 被引用数 (Scopus)

• Joining Y123 bulk superconductors using Yb-Ba-Cu-O and Er-Ba-Cu-O solders

  Yoshioka, J., Iida, K., Negichi, T., Sakai, N., Noto, K. & Murakami, M., 2002 5月 1, In: Superconductor Science and Technology. 15, 5, p. 712-716 5 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Solder 94%
  • Superconductor 85%
  • solders 85%
  • Soldering alloys 74%
  32 被引用数 (Scopus)

• Levitation forces of bulk RE-Ba-Cu-O in high magnetic fields

  Ito, E., Suzuki, T., Sakai, T., Koga, S., Murakami, M., Nagashima, K., Sakai, N., Hirabayashi, I. & Sawa, K., 2006 10月 1, In: Physica C: Superconductivity and its applications. 445-448, 1-2, p. 412-416 5 p.

  研究成果: Article › 査読

  • Levitation 100%
  • Relaxation time 85%
  • levitation 79%
  • Magnetic Field 61%
  • Magnetic fields 57%
  12 被引用数 (Scopus)

• Levitation of NEG-123 at the temperature of liquid oxygen (90.2 K)

  Muralidhar, M., Sakai, N., Jirsa, M., Murakami, M. & Koshizuka, N., 2003 11月, In: Superconductor Science and Technology. 16, 11, p. L46-L48

  研究成果: Article › 査読

  • Levitation 100%
  • liquid oxygen 94%
  • levitation 79%
  • Particle size 62%
  • Oxygen 53%
  30 被引用数 (Scopus)

• Low resistance joint of the YBCO coated conductor

  Kato-Yoshioka, J., Sakai, N., Tajima, S., Miyata, S., Watanabe, T., Yamada, Y., Chikumoto, N., Nakao, K., Izumi, T. & Shiohara, Y., 2006 6月 1, In: Journal of Physics: Conference Series. 43, 1, p. 166-169 4 p., 042.

  研究成果: Article › 査読

  Open Access

  • low resistance 100%
  • conductors 72%
  • contact resistance 30%
  • pulsed laser deposition 27%
  • atmospheres 20%
  24 被引用数 (Scopus)

• Low temperature mechanical properties of Y123 bulk superconductor fabricated by the modified QMG process

  Murakami, A., Katagiri, K., Kasaba, K., Noto, K., Teshima, H., Sawamura, M., Sakai, N. & Murakami, M., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 673-677 5 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Bending Strength 93%
  • Superconductor 85%
  • flexural strength 85%
  • liquid nitrogen 77%
  13 被引用数 (Scopus)

• Magnetic and magneto-optic characterization of the ternary compounds (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃ O_y,(Sm_0.33Eu_0.33Gd_0.33)Ba₂CU ₃O_y and (Nd_0.33Sm_0.33Gd_0.33) Ba₂Cu₃O_y

  Das, A., Koblischka, M. R., Sakai, N., Muralidhar, M., Koishikawa, S., Fukuzaki, T., Seo, S. J. & Murakami, M., 1998 11月 1, In: Superconductor Science and Technology. 11, 11, p. 1283-1291 9 p.

  研究成果: Article › 査読

  • Magnetooptical effects 100%
  • Magnetization 72%
  • magneto-optics 71%
  • Superconducting materials 40%
  • Hysteresis loops 36%
  6 被引用数 (Scopus)

• Magnetic and microstructure study of bulk (Sm_0.33Eu_0.33Gd_0.33)Ba₂Cu₃ O₃, with submicron Gd₂BaCuO₅ second-phase particles

  Muralidhar, M., Jirsa, M., Sakai, N., Wu, Y. & Murakami, M., 2003 5月, In: Journal of Materials Research. 18, 5, p. 1073-1080 8 p.

  研究成果: Article › 査読

  • SQUIDs 100%
  • Quantum Interference 92%
  • Microstructure 90%
  • Superconducting materials 87%
  • Magnetic properties 81%
  13 被引用数 (Scopus)

• Magnetic field distributions of stacked large single domain Gd-Ba-Cu-O bulk superconductors exceeding 140 mm in diameter

  Sakai, N., Nariki, S., Nishimura, M., Miyazaki, T., Murakami, M., Miryala, M. & Hirabayashi, I., 2007 10月 1, In: Physica C: Superconductivity and its applications. 463-465, SUPPL., p. 348-352 5 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Superconductor 85%
  • Magnetic Field 71%
  • Magnetic fields 66%
  • trapped magnetic fields 59%
  7 被引用数 (Scopus)

• Magnetic levitation in liquid oxygen and its applications

  Muralidhar, M., Sakai, N., Jirsa, M., Murakami, M. & Koshizuka, N., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 739-743 5 p.

  研究成果: Article › 査読

  • Magnetic Levitation 100%
  • Levitation 84%
  • Energy dispersive X ray analysis 80%
  • Oxygenation 80%
  • liquid oxygen 79%
  8 被引用数 (Scopus)

• Magnetic properties of melt-processed large single domain Gd-Ba-Cu-O bulk superconductor 140 mm in diameter

  Sakai, N., Nariki, S., Nagashima, K., Miryala, M., Murakami, M. & Hirabayashi, I., 2007 9月 1, In: Physica C: Superconductivity and its applications. 460-462 I, SPEC. ISS., p. 305-309 5 p.

  研究成果: Article › 査読

  • trapped magnetic fields 100%
  • Superconducting materials 83%
  • Magnetic properties 77%
  • Superconductor 71%
  • Magnetic Field 59%
  19 被引用数 (Scopus)

• Magnetic separation of nickel-plating waste liquid using a high temperature superconducting bulk magnet

  Oka, T., Sudo, K., Dadiel, J. L., Sakai, N., Seki, H., Miryala, M., Murakami, M., Nakano, T., Ooizumi, M., Yokoyama, K. & Tsujimura, M., 2022 9月, In: Superconductor Science and Technology. 35, 9, 094006.

  研究成果: Article › 査読

  • liquid wastes 100%
  • Nickel plating 96%
  • Magnetic separation 92%
  • Magnetic Separation 76%
  • plating 71%

• Magnetization measurement of (Nd, Eu, Gd)Ba₂Cu₃O _y having very high irreversibility fields in pulsed high magnetic fields

  Kono, T., Muralidhar, M., Nakao, K., Sakai, N., Murakami, M. & Koshizuka, N., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 699-703 5 p.

  研究成果: Article › 査読

  • Magnetization 100%
  • Magnetic Field 79%
  • Magnetic fields 73%
  • magnetization 55%
  • temperature dependence 54%

• Magnetization properties for Gd-Ba-Cu-O bulk superconductors with a couple of pulsed-field vortex-type coils

  Ida, T., Matsuzaki, H., Akita, Y., Izumi, M., Sugimoto, H., Hondou, Y., Kimura, Y., Sakai, N., Nariki, S., Hirabayashi, I., Miki, M., Murakami, M. & Kitano, M., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 638-645 8 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Magnetization 90%
  • Superconductor 85%
  • High temperature superconductors 84%
  • Coil 73%
  59 被引用数 (Scopus)

• Magnetizing Technique for Permanent Magnets in IPM Motor Rotors Using HTS Bulk Magnet

  Oka, T., Hasebe, S., Ogawa, J., Fukui, S., Nakano, T., Yokoyama, K., Miryala, M., Sakai, N. & Murakami, M., 2020 6月, In: IEEE Transactions on Applied Superconductivity. 30, 4, 9072631.

  研究成果: Article › 査読

  • permanent magnets 100%
  • Magnets 99%
  • rotors 97%
  • Magnetic Field 90%
  • Permanent magnets 84%
  4 被引用数 (Scopus)

• Materials processing, pulsed field magnetization and field-pole application to propulsion motors on Gd123 bulk superconductors

  Izumi, M., Xu, C., Hu, A., Ichihara, M., Xu, Y., Morita, E., Kimura, Y., Murakami, M., Sakai, N., Hirabayashi, I., Sugimoto, H. & Miki, M., 2008 2月 1, In: Journal of Physics: Conference Series. 97, 1, 012299.

  研究成果: Article › 査読

  • propulsion 100%
  • poles 78%
  • magnetization 57%
  • magnets 43%
  • torque 33%
  4 被引用数 (Scopus)

• Matrix chemical ratio and its optimization for highest flux pinning in ternary (Nd-Eu-Gd)Ba₂Cu₃O_y

  Muralidhar, M., Jirsa, M., Sakai, N. & Murakami, M., 2002 5月 1, In: Superconductor Science and Technology. 15, 5, p. 688-693 6 p.

  研究成果: Article › 査読

  • Flux pinning 100%
  • flux pinning 66%
  • Magnetic Field 50%
  • Magnetic fields 47%
  • optimization 35%
  5 被引用数 (Scopus)

• Measurements of the levitation forces for a bulk Gd-Ba-Cu-O superconductor in high magnetic fields

  Suzuki, T., Araki, S., Takeuchi, K., Murakami, M., Nagashima, K., Miyazaki, Y., Seino, H., Sakai, N., Hirabayashi, I. & Sawa, K., 2007 10月 1, In: Physica C: Superconductivity and its applications. 463-465, SUPPL., p. 383-386 4 p.

  研究成果: Article › 査読

  • Levitation 100%
  • Superconducting materials 86%
  • levitation 79%
  • Superconductor 74%
  • Magnetic Field 61%
  6 被引用数 (Scopus)

• Measurements of the thermal stresses in large-grain Y-Ba-Cu-O superconductors

  Miyamoto, T., Nagashima, K., Sakai, N. & Murakami, M., 2001 1月 1, In: Physica C: Superconductivity and its applications. 349, 1-2, p. 69-74 6 p.

  研究成果: Article › 査読

  • YBCO superconductors 100%
  • Superconducting materials 91%
  • Superconductor 78%
  • thermal stresses 74%
  • Thermal stress 69%
  18 被引用数 (Scopus)

• Measurements of three-dimensional fields of bulk superconductors in varying external fields

  Yamachi, N., Sakai, N., Sawa, K. & Murakami, M., 2005 2月 1, In: Superconductor Science and Technology. 18, 2, p. S67-S71

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Superconductor 85%
  • Magnetic Field 71%
  • Magnetic fields 66%
  • Levitation 57%
  4 被引用数 (Scopus)

• Mechanical properties of melt-textured Gd-Ba-Cu-O bulk with silver addition

  Nariki, S., Sakai, N., Tomita, M. & Murakami, M., 2002 10月 1, In: Physica C: Superconductivity and its applications. 378-381, PART 1, p. 779-782 4 p.

  研究成果: Article › 査読

  • Silver 100%
  • silver 75%
  • mechanical properties 61%
  • Mechanical properties 59%
  • Strength 58%
  27 被引用数 (Scopus)

• Mechanical properties of Y-Ba-Cu-O blocks welded by silver added Y-Ba-Cu-O solder

  Kaneko, T., Iida, K., Kono, T., Sakai, N., Murakami, M., Koshizuka, N., Murakami, A. & Katagiri, K., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 678-682 5 p.

  研究成果: Article › 査読

  • Solder 100%
  • solders 90%
  • Silver 88%
  • Soldering alloys 79%
  • liquid phases 68%
  2 被引用数 (Scopus)

• Melt-processed Gd-Ba-Cu-O superconductor with trapped field of 3 T at 77 K

  Nariki, S., Sakai, N. & Murakami, M., 2005 2月 1, In: Superconductor Science and Technology. 18, 2, p. S126-S130

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Molar ratio 91%
  • Partial pressure 90%
  • Superconductor 85%
  • Partial Pressure 72%
  160 被引用数 (Scopus)

• Melt-processed LRE-Ba-Cu-O superconductors and prospects for their applications

  Yoo, S. I., Fujimoto, H., Sakai, N. & Murakami, M., 1997 3月 20, In: Journal of Alloys and Compounds. 250, 1-2, p. 439-448 10 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Rare earths 93%
  • Flux pinning 93%
  • Superconductor 85%
  • Oxygen 61%
  23 被引用数 (Scopus)

• Melt processing and enhanced superconducting properties of single domain (Sm_0.5Eu_0.5)123 superconductors fabricated in air

  Hu, A., Sakai, N. & Murakami, M., 2002 5月 1, In: Superconductor Science and Technology. 15, 5, p. 675-678 4 p.

  研究成果: Article › 査読

  • Flux pinning 100%
  • Rare earth elements 75%
  • Superconducting materials 71%
  • Rare earths 66%
  • Superconductor 61%
  11 被引用数 (Scopus)

• Melt processing for obtaining NdBa₂Cu₃O_y superconductors with high T_c and large J_c

  Yoo, S. I., Sakai, N., Takaichi, H., Higuchi, T. & Murakami, M., 1994, In: Applied Physics Letters. 65, 5, p. 633-635 3 p.

  研究成果: Article › 査読

  • atmospheres 100%
  • magnetization 92%
  • oxygen 85%
  • gas mixtures 67%
  • critical current 64%
  563 被引用数 (Scopus)

• Melt processing for obtaining REBa2Cu30y superconductors (RE= Nd, Sm) with high Tcand large Jc

  Yoo, S. I., Sakai, N., Higuchi, T. & Murakami, M., 1995 6月, In: IEEE Transactions on Applied Superconductivity. 5, 2, p. 1568-1571 4 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Superconductor 85%
  • Oxygen 61%
  • oxygen 45%
  • Annealing 39%
  43 被引用数 (Scopus)

• Melt processing for strong flux pinning in RE-Ba-Cu-O (RE: Nd, Sm, Eu, Gd) superconductors

  Yoo, S. I., Murakami, M., Sakai, N., Ohyama, T., Higuchi, T., Watahiki, M. & Takahashi, M., 1995 12月 1, In: Journal of Electronic Materials. 24, 12, p. 1923-1930 8 p.

  研究成果: Article › 査読

  • Irreversibility Line 100%
  • Flux pinning 90%
  • Superconducting materials 64%
  • Rare earths 60%
  • flux pinning 60%
  26 被引用数 (Scopus)

• Melt processing of bulk YBaCuO superconductors with high J_c

  Murakami, M., Kondoh, A., Fujimoto, H., Sakai, N., Takaichi, H., Yamaguchi, K., Takata, T., Takamuku, K., Ogawa, N., Hirabayashi, I., Koshizuka, N. & Tanaka, S., 1992 1月 1, In: Journal of Engineering Materials and Technology, Transactions of the ASME. 114, 2, p. 189-195 7 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Superconductor 85%
  • inclusions 60%
  4 被引用数 (Scopus)

• Melt processing of La-Ba-Cu-O superconductors with high T_c

  Sakai, N., Goshima, S., Kawaguchi, M., Yoo, S. I. & Murakami, M., 1998 5月 1, In: Materials Science and Engineering B. 53, 1-2, p. 109-114 6 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Superconductor 85%
  • atmospheres 17%
  • curves 13%
  3 被引用数 (Scopus)

• Microstructure and superconducting properties of meltprocessed RE-Ba-Cu-O with dispersed barium cerate particles

  Nariki, S., Sakai, N., Murakami, M. & Hirabayashi, I., 2006 6月 1, In: Journal of Physics: Conference Series. 43, 1, p. 373-376 4 p., 093.

  研究成果: Article › 査読

  • barium 100%
  • microstructure 56%
  • flux pinning 23%
  • critical current 17%
  • inclusions 15%

• Microstructure of (Nd, Eu, Gd)-123 matrix with (Nd, Eu, Gd)-211 inclusions

  Muralidhar, M., Jirsa, M., Iida, K., Sakai, N. & Murakami, M., 2001 2月, In: Journal of Materials Research. 16, 2, p. 407-412 6 p.

  研究成果: Article › 査読

  • High resolution electron microscopy 100%
  • Transmission electron microscopy 60%
  • inclusions 46%
  • Defects 40%
  • Microstructure 39%
  4 被引用数 (Scopus)

• Microstructures and superconducting properties of melt-processed (RE,RE′)-Ba-Cu-O

  Saitoh, T., Segawa, K., Kamada, K., Sakai, N., Segawa, T., Yoo, S. I. & Murakami, M., 1997 8月 20, In: Physica C: Superconductivity and its applications. 288, 1-2, p. 141-147 7 p.

  研究成果: Article › 査読

  • Rare earth elements 100%
  • rare earth elements 61%
  • Lanthanoid Atom 54%
  • Microstructure 48%
  • microstructure 42%
  50 被引用数 (Scopus)

• Microstructures and superconducting properties of single domain (Sm_0.5,Eu_0.5)Ba₂Cu₃ O_7-δ superconductors fabricated in air

  Hu, A., Sakai, N., Ogasawara, K. & Murakami, M., 2002 1月 15, In: Physica C: Superconductivity and its applications. 366, 3, p. 157-163 7 p.

  研究成果: Article › 査読

  • Twin Boundary 100%
  • Superconducting materials 82%
  • Crystal Defect 73%
  • Superconductor 70%
  • Pellet 61%
  21 被引用数 (Scopus)

• Modulation of the peak effect in melt-processed (Sm_1-xEu_x)Ba₂Cu₃O_7-δ superconductors with compositional fluctuation

  Hu, A., Zhou, H., Sakai, N. & Murakami, M., 2003 12月 16, In: Applied Physics Letters. 81, 25, p. 4796-4798 3 p.

  研究成果: Article › 査読

  • modulation 100%
  • flux pinning 92%
  • magnetization 49%
  • oxides 46%
  • crystals 36%
  34 被引用数 (Scopus)

• Nanoscale Gd₂BaCuO₅ particles in (Sm _0.33Eu_0.33Gd_0.33)Ba₂Cu ₃O_y and magnetic levitation at 90.2 K

  Muralidhar, M., Sakai, N., Jirsa, M., Murakami, M. & Koshizuka, N., 2005 3月 1, In: Superconductor Science and Technology. 18, 3, p. L9-L12

  研究成果: Article › 査読

  • Magnetic Levitation 100%
  • Levitation 84%
  • Magnetic levitation 69%
  • levitation 66%
  • Superconductor 62%
  11 被引用数 (Scopus)

• New method of synthesis and physical properties of thick superconducting Er-123 films

  Muralidhar, M., Sakai, N., Machi, T., Miyajiri, T., Hirabayashi, I. & Tanaka, S., 2008 9月 15, In: Physica C: Superconductivity and its applications. 468, 15-20, p. 1345-1349 5 p.

  研究成果: Article › 査読

  • Thick films 100%
  • Silver 89%
  • thick films 76%
  • Physical properties 73%
  • silver 67%

• New Type of Vortex Pinning Structure Effective at Very High Magnetic Fields

  Muralidhar, M., Sakai, N., Chikumoto, N., Jirsa, M., Machi, T., Nishiyama, M., Wu, Y. & Murakami, M., 2002, In: Physical Review Letters. 89, 23

  研究成果: Article › 査読

  • vortices 100%
  • magnetic fields 67%
  • lamella 48%
  • augmentation 27%
  • matrices 24%
  174 被引用数 (Scopus)

• NMR Relaxometry Using Outer Field of Single-Sided HTS Bulk Magnet Activated by Pulsed Field

  Takahashi, M., Kikuchi, S., Inoue, N., Sakai, N., Murakami, M., Yokoyama, K., Oka, T. & Nakamura, T., 2022 9月 1, In: IEEE Transactions on Applied Superconductivity. 32, 6, 4602404.

  研究成果: Article › 査読

  • Nuclear magnetic resonance 100%
  • Magnets 85%
  • Magnetization 77%
  • magnets 67%
  • nuclear magnetic resonance 66%

• Novel magnetizing technique using high temperature superconducting bulk magnets for permanent magnets in interior permanent magnet rotors

  Oka, T., Hasebe, S., Ogawa, J., Fukui, S., Nakano, T., Sakai, N., Miryala, M., Murakami, M. & Yokoyama, K., 2020 8月, In: Superconductor Science and Technology. 33, 8, 084003.

  研究成果: Article › 査読

  • permanent magnets 100%
  • Magnets 99%
  • rotors 97%
  • Magnetic Field 90%
  • Permanent magnets 84%
  2 被引用数 (Scopus)

• Novel ultra-sonic boron refinement in distilled water for cost-efficient fabrication of MgB₂ bulk ceramic superconductors

  Arvapalli, S. S., Miryala, M., Sakai, N., Murakami, M. & Jirsa, M., 2022 10月 1, In: Ceramics International. 48, 19, p. 28102-28111 10 p.

  研究成果: Article › 査読

  Open Access

  • Ceramic superconductors 100%
  • Boron 54%
  • Superconductor 54%
  • Boron Atom 42%
  • Ceramic 37%

• Numerical simulation of a bulk superconductor during pulsed field magnetization

  Fukai, H., Sakai, N., Murakami, M. & Hirabayashi, I., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 695-698 4 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Magnetization 90%
  • Superconductor 85%
  • magnetization 49%
  • Simulation 48%
  5 被引用数 (Scopus)

• Observation of Flux Distribution on the Surface of MPMG-processed YBCO

  Higuchi, T., Sakai, N., Murakami, M. & Hashimoto, M., 1995 6月, In: IEEE Transactions on Applied Superconductivity. 5, 2, p. 1818-1821 4 p.

  研究成果: Article › 査読

  • Superconducting materials 100%
  • Superconductor 85%
  • Magnetic Flux 62%
  • Liquid nitrogen 48%
  • Probe 46%
  6 被引用数 (Scopus)

• Observation of record flux pinning in melt-textured NEG-123 superconductor doped by Nb, Mo, and Ti nanoparticles

  Muralidhar, M., Tomita, M., Jirsa, M., Sakai, N., Murakami, M. & Hirabayashi, I., 2009 10月 15, In: Physica C: Superconductivity and its applications. 469, 15-20, p. 1196-1199 4 p.

  研究成果: Article › 査読

  • Flux pinning 100%
  • Superconducting materials 71%
  • flux pinning 66%
  • Superconductor 61%
  • Nanoparticles 53%
  7 被引用数 (Scopus)